Improvement in the construction of double-walled coolers



UNITED STATES PATENT OFFICE. g

JOHN OLDF'IELD, OF THOMPSON VILLE, OONNEOTIOUT.

IMPROVEMENT IN THE CONSTRUCTION 0F DOUBLE-WALLED COOLERS.

Specification forming part of Letters Patent No. 87,283, dated February 23, 1869.

To all whom it may concern:

Be it known that I, JOHN OLDFIELD, of Thompsonville, State of Connecticut, have invented a new and useful Improved Cooler or Attemperator; and I do hereby declare that the following is a full and clear description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

In the drawings, Figure I is a top or plan view, Fig. Il a side sectional view, and Fig. III a perspective View, of my invention.

This invention consists of a useful im proved cooler for the purpose ofcheapl y and eflicientl y supplying the place of the expensive and bulky refrigerators most generally in use.

In construction 1 form my cooler of two cylinders, one within the other, and when being joined by the top and bottom of the cooler form the chamber for the water, the diii'erence in the sizes ofthe two cylinders A and B (forming the inside and outside of the cooler) regulating the size ofthe water-chamber. As will be seen in Fig. I, l make the sides of the water-chamber of one piece of metal, commencing at a. The metal is bent into a round shape. It is then carried over to b, from which it is bent round, forming the outside of the chamber, to b again,

being soldered at the two points a and b. As will be seen in the gure, the carrying the metal from a to b makes the division C in the chamber. On one side ofthe partition, at o, I place a tube, D, which is the supply-pipe, and extend it close to the bottom ot' the water-chamber.

At d is placed the discharge-pipe E, which is connected with the top ot' the water-chamber on the inside of the cooler, and connected with the bottom of the water-chamber is the tube F, which is -used to draw oli' the water from the cooler when it is necessary to move it from place to place, and which may be stopped witha plug or faucet.

lhe handles G enable the cooler to be moved with ease anywhere.

. Now, having described my invention, what I claim as new, and desire to secure by Letters JOHN OLDFIELD.

Witnesses:

R. F. HYDE, E. H. HYDE. 

